mmc: fix cid and csd byte order

MMC over SPI sends the CID and CSD registers as data, not responses,
which means that the host driver won't do the necessary byte flipping
for us.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c
index bf4bc6adcfef8fbed951a274ee2cc4ca12dae36f..7471d49909b25fbad327cf67a41aed52b6433fbb 100644 (file)
--- a/drivers/mmc/core/mmc_ops.c
+++ b/drivers/mmc/core/mmc_ops.c
@@ -267,15 +267,26 @@ mmc_send_cxd_data(struct mmc_card *card, struct mmc_host *host,
 
 int mmc_send_csd(struct mmc_card *card, u32 *csd)
 {
+       int ret, i;
+
        if (!mmc_host_is_spi(card->host))
                return mmc_send_cxd_native(card->host, card->rca << 16,
                                csd, MMC_SEND_CSD);
 
-       return mmc_send_cxd_data(card, card->host, MMC_SEND_CSD, csd, 16);
+       ret = mmc_send_cxd_data(card, card->host, MMC_SEND_CSD, csd, 16);
+       if (ret)
+               return ret;
+
+       for (i = 0;i < 4;i++)
+               csd[i] = be32_to_cpu(csd[i]);
+
+       return 0;
 }
 
 int mmc_send_cid(struct mmc_host *host, u32 *cid)
 {
+       int ret, i;
+
        if (!mmc_host_is_spi(host)) {
                if (!host->card)
                        return -EINVAL;
@@ -283,7 +294,14 @@ int mmc_send_cid(struct mmc_host *host, u32 *cid)
                                cid, MMC_SEND_CID);
        }
 
-       return mmc_send_cxd_data(NULL, host, MMC_SEND_CID, cid, 16);
+       ret = mmc_send_cxd_data(NULL, host, MMC_SEND_CID, cid, 16);
+       if (ret)
+               return ret;
+
+       for (i = 0;i < 4;i++)
+               cid[i] = be32_to_cpu(cid[i]);
+
+       return 0;
 }
 
 int mmc_send_ext_csd(struct mmc_card *card, u8 *ext_csd)